Loudspeaker



FIG. 1 is a perspective view of a loudspeaker showing my new design;

FIG. 2 is front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevational view, the opposite side elevational view being a mirror image thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken line showings of the three large circles and the series of fin-shaped elements along the periphery are for illustrative purposes only and form no part of the claimed invention. 

The ornamental design for a loudspeaker, as shown and described. 